Estimate the frequency of harmonic using the root-MUSIC algorithm
Shiyong Yang, Xiaorong Tan, Yanqing Wang · 2017
Estimating the frequency of harmonics with multiplicative and additive noise is encountered generally in many sciences and engineering applications. To conquer the Rayleigh resolution limit of the cyclic statistics method and improve the frequency resolution, this paper presents a new root-MUSIC based method for the frequency estimation of harmonics contaminated by multiplicative noise. The frequency resolution of the presented method is high. The presented method dispense with the peak searching. The effectiveness of the presented method is demonstrated by simulation results.